scholarly journals Temperature-dependent magnetic anisotropy in the layered magnetic semiconductors CrI3 and CrBr3

Author(s):  
Nils Richter ◽  
Daniel Weber ◽  
Franziska Martin ◽  
Nirpendra Singh ◽  
Udo Schwingenschlögl ◽  
...  
2013 ◽  
Vol 63 (12) ◽  
pp. 1328-1332
Author(s):  
D. Y. Lee ◽  
C. -W. Cho ◽  
S. H. Lee ◽  
J. W. Kim ◽  
H. K. Kim ◽  
...  

2016 ◽  
Vol 411 ◽  
pp. 79-83 ◽  
Author(s):  
S. Stagraczyński ◽  
C. Jasiukiewicz ◽  
V.K. Dugaev ◽  
J. Berakdar

2004 ◽  
Vol 93 (25) ◽  
Author(s):  
J. B. Staunton ◽  
S. Ostanin ◽  
S. S. A. Razee ◽  
B. L. Gyorffy ◽  
L. Szunyogh ◽  
...  

1998 ◽  
Vol 84 (2) ◽  
pp. 901-906 ◽  
Author(s):  
J. Jorritsma ◽  
J. A. Mydosh

2018 ◽  
Vol 447 ◽  
pp. 96-100 ◽  
Author(s):  
Martin Stier ◽  
Alexander Neumann ◽  
André Philippi-Kobs ◽  
Hans Peter Oepen ◽  
Michael Thorwart

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Wencan Jin ◽  
Hyun Ho Kim ◽  
Zhipeng Ye ◽  
Gaihua Ye ◽  
Laura Rojas ◽  
...  

Abstract Exciton dynamics can be strongly affected by lattice vibrations through electron-phonon coupling. This is rarely explored in two-dimensional magnetic semiconductors. Focusing on bilayer CrI3, we first show the presence of strong electron-phonon coupling through temperature-dependent photoluminescence and absorption spectroscopy. We then report the observation of periodic broad modes up to the 8th order in Raman spectra, attributed to the polaronic character of excitons. We establish that this polaronic character is dominated by the coupling between the charge-transfer exciton at 1.96 eV and a longitudinal optical phonon at 120.6 cm−1. We further show that the emergence of long-range magnetic order enhances the electron-phonon coupling strength by ~50% and that the transition from layered antiferromagnetic to ferromagnetic order tunes the spectral intensity of the periodic broad modes, suggesting a strong coupling among the lattice, charge and spin in two-dimensional CrI3. Our study opens opportunities for tailoring light-matter interactions in two-dimensional magnetic semiconductors.


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